Which trigonometric ratios are correct for triangle
abc? select three options.
sin(c) = 3
cos(b) = ?
tan(c) = 3
sin(b) = 1
tan(b) = 23

none

step-by-step explanation:

the 30 60 90 triangle has sides in the ratio of 1 : sqrt{3} : 2 so remaining leg 9sqrt{3}.

sin c = sqrt{3}/2

cos b = sqrt{3}/2

tan c = sqrt{3}

sin b = 1/2

tan b = 1/sqrt{3}

only 10/60 isn't equivalent

hope this : )